methyl 1H-pyrazolo[4,3-b]pyridine-5-carboxylate CAS 1033772-23-4
| CAS No. | 1033772-23-4 |
| Molecular Formula | C8H15N3O2 |
| Molecular Weight | 185.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
methyl 1H-pyrazolo[4,3-b]pyridine-5-carboxylate (CAS 1033772-23-4) is a high-purity analytical reference standard with the molecular formula C8H15N3O2 and a molecular weight of 185.22 g/mol.
Based on its molecular formula C8H15N3O2, methyl 1H-pyrazolo[4,3-b]pyridine-5-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 185.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H15N3O2 |
| Molecular Weight | 185.22 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 4-Amino-3-phenylphenol (CAS 103114-32-5)
- methyl 1H-pyrazolo[3,4-c]pyridine-5-carboxylate (CAS 1033772-26-7)
- 5-methylimidazo[1,2-a]pyrimidine-7-carboxylic acid (CAS 1030017-70-9)
- (R)-Methyl 2-(tert-butyl)oxazole-3(2H)-carboxylate (CAS 104173-34-4)
- 4-(4-(4-Chlorophenyl)-5-methyl-1H-pyrazol-3-yl)-4H-1,2,4-triazole (CAS 62537-96-6)
- 2-Bromo-N-[4-(2-methoxyethoxy)phenyl]acetamide (CAS 1138445-93-8)
- 1-(1H-Benzo[d][1,2,3]triazol-1-yl)-2-phenylethanone (CAS 30516-21-3)
- 2-Methoxy-benzylamine, HCl (CAS 42365-52-6)
- 3-methoxy-4,6-bis(methylthio)-1H-pyrazolo[3,4-d]pyrimidine (CAS 111375-42-9)
- 1-(4-Chloro-2-fluorobenzyl)-1H-imidazole (CAS 1379296-30-6)
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- (4-(Fluoromethyl)tetrahydro-2H-pyran-4-yl)methanamine (CAS 1551366-31-4)
- Semaglutide Impurity 21(HO-Ste-L-γGlu-AEEA-AEEA-OH) (CAS 1335440-44-2)
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